Internal heating effect and enhancement of drying of ceramics by microwave heating with dynamic control

Microwave heating was discovered more than 60 years ago. And nowadays, it became popular for the use as domestic ovens. Microwave has also been utilized for the industrial processes, such as drying and roasting. On the other hand, there have been many applications of microwave, being investigated for materials' processing and environmental technologies. They are attempted to take advantage of some specific characteristics in microwave heating, which differs from that of the conventional one. Rapid heating, internal heating, selective heating are the features to be taken into consideration. Moreover, so-called "non-thermal effect" is the additional feature in which researchers are particularly interested. In this article, it is intended to describe fundamental aspects in microwave heating and introduce some selected topics of research projects performed in our research group. They include researches on fabrication of some functional materials and on handling industrial wastes etc. In this article, it is also intended to interpret the phenomena observed in these applications from the fundamental view points of electromagnetic wave interaction with materials.

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Inactivation of Soybean Lipoxygenase by Microwave Heating: Effect of Moisture Content and Exposure Time

Journal of Food Science ◽

10.1111/j.1365-2621.1987.tb14078.x ◽

1987 ◽

Vol 52 (5) ◽

pp. 1344-1347 ◽

Cited By ~ 19

Author(s):

S.H. WANG ◽

M.C.F. TOLEDO

Keyword(s):

Moisture Content ◽

Microwave Heating ◽

Exposure Time ◽

Soybean Lipoxygenase ◽

Heating Effect ◽

Effect Of Moisture

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Microwave Heating Effect on the Dog Thyroid Gland

IEEE Transactions on Biomedical Engineering ◽

10.1109/tbme.1977.326163 ◽

1977 ◽

Vol BME-24 (6) ◽

pp. 522-529 ◽

Cited By ~ 11

Author(s):

Richard L. Magin ◽

Shin-Tsu Lu ◽

Sol M. Michaelson

Keyword(s):

Thyroid Gland ◽

Microwave Heating ◽

Heating Effect

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Discovery of an “internal heating effect” during electrochemical etching of polymeric dosimeters

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/0168-9002(85)90495-4 ◽

1985 ◽

Vol 238 (2-3) ◽

pp. 517-523 ◽

Cited By ~ 16

Author(s):

Mehdi Sohrabi

Keyword(s):

Electrochemical Etching ◽

Heating Effect ◽

Internal Heating

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Temperature Variations of Forced Convection in Porous Media for Heating and Cooling Processes: Internal Heating Effect of Viscous Dissipation

Transport in Porous Media ◽

10.1007/s11242-008-9262-4 ◽

2008 ◽

Vol 75 (3) ◽

pp. 333-333

Author(s):

Y.-M. Hung ◽

C. P. Tso

Keyword(s):

Porous Media ◽

Forced Convection ◽

Viscous Dissipation ◽

Heating Effect ◽

Internal Heating ◽

Temperature Variations ◽

Heating And Cooling ◽

Convection In Porous Media

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The Onset of Convection in an Internally Heated Nanofluid Layer

Journal of Heat Transfer ◽

10.1115/1.4025048 ◽

2013 ◽

Vol 136 (1) ◽

Cited By ~ 11

Author(s):

D. A. Nield ◽

A. V. Kuznetsov

Keyword(s):

Brownian Motion ◽

Boundary Conditions ◽

Microwave Heating ◽

Chemical Reaction ◽

Vertical Gradient ◽

Horizontal Layer ◽

Internal Heating ◽

Onset Of Convection ◽

Brownian Motion And Thermophoresis ◽

Heating From Below

We analytically studied the onset of convection, induced by internal heating, such as that produced by microwave heating or chemical reaction, in a horizontal layer of a nanofluid subject to Brownian motion and thermophoresis. This is a fundamentally different situation from traditionally studied heating from below. Convection, when it occurs, is now concentrated in the portion of the layer where the upward vertical gradient is negative, which is the upper portion of the layer. The situation of internal heating also allows employing more realistic boundary conditions than those hitherto used.

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